Dell Dimension 4300 Closing the Computer Cover, Replacing the System Board

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NOTICE: The system board and the metal tray are attached and are removed as one piece.

5.Remove or move any components that restrict access to the system board.

6.Disconnect all cables from the system board.

Before you remove the existing system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part.

NOTICE: Release the tab on the system board before you remove the system board.

7.Pull up on the tab and slide the system board toward the front of the computer; lift it up and away.

8.Place the system board that you just removed next to the replacement system board.

Replacing the System Board

1.Transfer components from the existing system board to the replacement system board. a. Remove the memory modules and install them on the replacement board.

CAUTION: The microprocessor package and heat sink assembly can get hot. To avoid burns, be sure that the package and assembly have had sufficient time to cool before you touch them.

b.Remove the heat sink assembly and microprocessor package from the existing system board and transfer it to the replacement system board.

2.Configure the settings of the replacement system board.

Set the jumper on the replacement system board so it is identical to the one on the existing board.

3.Orient the replacement board by aligning the notches on the bottom to the tabs on the computer floor.

4.Slide the board toward the back of the computer until it clicks into place.

5.Replace any components and cables that you removed from the system board.

6.Close the computer cover.

7.Connect your computer and devices to their electrical outlets, and turn them on.

NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.

Closing the Computer Cover

1.Ensure that all cables are connected, and fold cables out of the way.

2.Ensure that no tools or extra parts are left inside the computer.

3.Pivot the cover down and ensure that the release buttons click into place.

NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.

4.Connect your computer and devices to their electrical outlets, and turn them on.

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Contents Abbreviations and Acronyms Dell DimensionHints, Notices, and Cautions System Codes and Messages Diagnostic CodesDiagnostic Code Definition Corrective Action Message Possible Cause Corrective Action Post Beep CodesSystem Messages Beep Codes Possible Cause Corrective ActionPost Downloading the Tell Me How Help File and Associated Files DocumentationPrinted Documentation Online DocumentationAdding Parts Safety InstructionsWhen Using Your Computer When Working Inside Your ComputerReattaching the Front Door and Hinge Arms Shutting Down the ComputerReattaching the Hinge Arms Opening the Computer Cover Open the computer cover Adding CardsClose the computer cover Removing CardsAdding Memory Replacing an AGP Card Adding a Second Hard Drive Inch Devices Adding Other DrivesShut down the computer Inch Devices Replacing the Microprocessor Page Installing the Microprocessor Removing the Front I/O Panel Replacing the Power SupplyRemoving the Power Supply Removing the System Board Replacing the Power SupplyReplacing the System Board Replacing the System Board Closing the Computer CoverPage Power Problems Solving ProblemsAccessing Help Files If the screen is blank Start-Up Error MessagesVideo and Monitor Problems Adjust the Windows display settingsIf you cannot print to a USB printer Sound and Speaker ProblemsPrinter Problems If you cannot print to a parallel port printerControl Panel, double-clickPhone and Modem Options Scanner ProblemsModem Problems Verify that the modem is communicating with WindowsCheck the mouse settings Mouse ProblemsKeyboard Problems Drive ProblemsIf the CD-RW drive stops writing If you have a hard drive problemUnder Error-checking, click Check Now If you cannot play a DVD movieGeneral Program Problems Network ProblemsMicrosoft Windows Error Messages Resolving Other Technical Problems Internet Connection ProblemsMail Problems Click Properties Reinstalling DriversUsing the Windows XP Device Driver Rollback At the Welcome Dell System Owner screen, click NextWindows Click Performance and Maintenance, and then click SystemResolving Software and Hardware Incompatibilities Windows MeClick the System Restore tab Using System RestoreCreating a Restore Point Click Performance and MaintenanceRestoring the Computer to an Earlier Operating State Reinstalling Windows XPUndoing the Last System Restore Click Create a restore pointClick Next in the Welcome to Windows Me window Reinstalling Windows MeClick I accept the Agreement, and then click Next Reinstalling WindowsBack to Contents Specifications Technical SpecificationsControls and Lights PowerAudio3 VideoPage Overview System Setup ProgramViewing Settings System Setup Program ScreensOption Function PXE BIS Clearing Forgotten PasswordsTechnical Overview Internal View System Board Connectors and SocketsSocketed Microprocessor Power SupplyPin Number Signal name 18-AWG Wire DC Power ConnectorsDC Power Connector P7 DC Power Connector P2DC Power Connectors P3, P5, P6, P8, and P9 IDE Channel IDE Connector Location Dell Installed Drive IDE Interface Cable Connections for Dell-Installed DrivesPlacement of Dell-Installed Cards Pin Number Signal Name 22-AWG WireFront View Controls and LightsWindows Label Back ViewSerial Connector Hints, Notices, and Cautions Abbreviations and Acronyms